Title:
DEFROSTING DEVICE FOR THE NATURAL-CONVECTION EVAPORATOR OF A LOW-TEMPERATURE STORE
Document Type and Number:
WIPO Patent Application WO/2011/139011
Kind Code:
A1
Abstract:
The present invention relates to a defrosting device for the natural-convection evaporator of a low-temperature store. To this end, the natural-convection evaporator of a low-temperature store consists of an evaporator which has a cooling pipe for receiving a supply of coolant from external equipment and has a supporting frame for supporting the cooling pipe and which provides cooling air to a low-temperature store by throttling the coolant supplied to the cooling pipe, and consists of a water collecting tank which is coupled to the evaporator and collects condensed water, a heat-emitting pipe which is installed in the evaporator and ensures a high temperature while emitting heat, and a power source unit which supplies the heat-emitting pipe with a power source, and this natural-convection evaporator comprises: an electrode sensor in which a first electrode plate and a second electrode plate are disposed in a short-circuited state with a spacing interval in between so as to be able to detect frost building up on the cooling pipe of the evaporator; a photosensor which detects whether there is any frost by means of changes in the amount of light received when light emitted from a light-emitting unit is reflected on the surface of the cooling pipe provided in the evaporator and falls incident on a light-receiving unit; and a control unit which removes the frost that has built up on the cooling pipe by judging whether to apply a current to the heat-emitting pipe upon detecting both a current in the electrode sensor and a change in the amount of light received in the photosensor.
Inventors:
PARK, Kwang Kyun (1 Hyundai Apt, 191-3 Baekseok-dong Cheonan-si, Chungcheongnam-do 331-790, 331-790, KR)
Application Number:
KR2010/008426
Publication Date:
November 10, 2011
Filing Date:
November 26, 2010
Export Citation:
Assignee:
JEIL FINE TECH CO., LTD. (233-14 Budae-dong, Seobuk-gu Cheonan-si, Chungcheongnam-do 331-240, 331-240, KR)
주식회사 제일화인테크 (충청남도 천안시 서북구 부대동 233-14, 331-240 Chungcheongnam-do, 331-240, KR)
주식회사 제일화인테크 (충청남도 천안시 서북구 부대동 233-14, 331-240 Chungcheongnam-do, 331-240, KR)
International Classes:
F25D21/08; F25D29/00; F28F17/00
Attorney, Agent or Firm:
KIM, Dae Young (#610 Mannyun Officetel, 241 Walpyung-dong Seo-gu, Daejeon 302-282, 302-282, KR)
Claims: